CAS reference

Carbon dioxide

二氧化碳

Liquefied or gaseous compressed cargo. Beverage, food-freezing, and inert-blanketing demand drives most trade. Specialty uses include enhanced oil recovery and supercritical CO2 extraction. China-export limited because domestic capacity dwarfs global demand.

CAS 124-38-9 ·CO2 ·MW 44.009 g/mol ·HS 281121

Identifiers

Synonyms
CO2, Carbonic anhydride, Dry ice (solid)
Formula
CO2
Molecular weight
44.009 g/mol
SMILES
O=C=O
InChIKey
CURLTUGMZLYLDI-UHFFFAOYSA-N
HS code (6-digit)
281121

Transport and hazard profile

Transport classification, UN number UN1013, IMDG Class 2.2.

GHS hazard statements, Warning. H-codes, H280. Refer to the substance SDS Section 2 for the full classification.

Regulatory profile across 5 jurisdictions

Verified against ECHA, US EPA TSCA Inventory, MEE China IECSC, NIER K-REACH, and AICIS AIIC. Last verification 2026-04-30. Confirm with the regulator portal before any shipping decision.

EU REACH
Listed
US TSCA
Listed
China IECSC
Listed
Korea K-REACH
Listed
Australia AICIS
Listed

Look up other substances at the REACH / TSCA cross-jurisdiction checker.

Common applications

  • · Beverage carbonation
  • · Food freezing (dry ice)
  • · Welding shield gas
  • · Enhanced oil recovery
  • · Supercritical solvent extraction

Sourcing documentation chain

Every shipment of Carbon dioxide from China should include a per-batch COA, a current SDS per GB/T 17519 on the China side and the destination jurisdiction's standard on the import side, a packing list, a bill of lading, and a certificate of origin plus an MSA China DG packing certificate. For Incoterms reference see FOB, CIF, and CFR.

Sourcing Carbon dioxide?

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Our Shanghai team handles the documentation chain for Carbon dioxide exports out of China. Factory selection, COA verification, DG declaration if applicable, and the duty stack quantified before you commit a deposit.

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Free PDF: the MSDS verification template Sourzi runs against the supplier sheet for every CAS number we book out of China.